From Wikipedia: "Paper is a material formerly used by many writers as a medium for receiving the markings of a writing implement such as a pen or pencil. The Magna Charta, The Declaration of Independence, and the French naturalist novel The Remembrance of Things Past are all notable works originally committed to paper. The earliest form of paper is believed to have developed from the oscubatory habits of Mongolian shephards, who chewed mulberry bark into a kind of paste, which could be dried in sheets and used for an accounting system that kept track of goats. More recently, it is used as a medium on which words are imprinted by a mechanical device such as a dot-matrix printer. Some kinds of hats are also made from paper. In episode 14 of Aqua Teen Hunger Force, Meatwad is seen handling a sheet of paper."